mirror of
https://gitlab.com/mobian1/eg25-manager.git
synced 2025-08-29 15:22:20 +02:00
528fe7e07c
This brings the power on sequence in line with the EG25-G Hardware Design datasheet, which states we need to wait at least 30 ms after VBAT becomes stable before pulling PWRKEY low (first action of the power on sequene). After this change the sequence becomes as follows: - Set RESET_N high - Wait 60 ms (double 30 ms) - Execute PWRKEY sequence 60 ms was choosen because we don't know when VBAT becomes stable, but it should be much less than an additional 30 ms. Empirical evidence suggests PinePhone units with a healthy battery do not see serious side effects from not doing this, while the modem will fail to boot and/or throw random errors on boot with a worn out battery.